JPS6419309A - Thin film waveguide type isolator - Google Patents
Thin film waveguide type isolatorInfo
- Publication number
- JPS6419309A JPS6419309A JP17488787A JP17488787A JPS6419309A JP S6419309 A JPS6419309 A JP S6419309A JP 17488787 A JP17488787 A JP 17488787A JP 17488787 A JP17488787 A JP 17488787A JP S6419309 A JPS6419309 A JP S6419309A
- Authority
- JP
- Japan
- Prior art keywords
- guide
- mode
- light guide
- channel type
- depth
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Optical Integrated Circuits (AREA)
Abstract
PURPOSE:To obtain a high isolation ratio and high single mode fiber coupling efficiency by forming a channel type light guide having the depth of the guide at which the propagation constants of two guide modes propagating in the light guide nearly coincide with each other. CONSTITUTION:The channel type light guide 2, the depth of the guide of which is designated as T and the width as W, has the depth T at which the propagation constants of the two guide modes (TE mode and TM mode) propagating in the light guide nearly coincide with each other. T and W have the values to constitute the single mode channel type guide in which only the basic modes of the TE mode and TM mode can propagate. This channel type thin film light guide consists of a magneto-optical material formed on a garnet crystal substrate 1. The garnet crystal substrate 1 is preferably a GGG crystal substrate and the magneto-optical material is preferably Bi-substd. YIG in particular for its small saturation magnetization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17488787A JPS6419309A (en) | 1987-07-15 | 1987-07-15 | Thin film waveguide type isolator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17488787A JPS6419309A (en) | 1987-07-15 | 1987-07-15 | Thin film waveguide type isolator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6419309A true JPS6419309A (en) | 1989-01-23 |
Family
ID=15986405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17488787A Pending JPS6419309A (en) | 1987-07-15 | 1987-07-15 | Thin film waveguide type isolator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6419309A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5133417A (en) * | 1990-06-18 | 1992-07-28 | The Charles Machine Works, Inc. | Angle sensor using thermal conductivity for a steerable boring tool |
| US5852878A (en) * | 1997-07-14 | 1998-12-29 | The Fredericks Company | Electrolytic tilt sensing device |
| WO2010107853A3 (en) * | 2009-03-18 | 2011-01-13 | Massachusetts Institute Of Technology | Integrated silicon/silicon-germanium magneto-optic isolator |
| CN103777273A (en) * | 2014-02-12 | 2014-05-07 | 华中科技大学 | Waveguide intersection unit and manufacturing method thereof |
| JP2016523393A (en) * | 2013-08-19 | 2016-08-08 | 華為技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． | Optical isolator |
| JP2020134845A (en) * | 2019-02-25 | 2020-08-31 | 京セラ株式会社 | Isolator, light source device, optical transmitter, optical switch, optical amplifier, and data center |
-
1987
- 1987-07-15 JP JP17488787A patent/JPS6419309A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5133417A (en) * | 1990-06-18 | 1992-07-28 | The Charles Machine Works, Inc. | Angle sensor using thermal conductivity for a steerable boring tool |
| US5852878A (en) * | 1997-07-14 | 1998-12-29 | The Fredericks Company | Electrolytic tilt sensing device |
| WO2010107853A3 (en) * | 2009-03-18 | 2011-01-13 | Massachusetts Institute Of Technology | Integrated silicon/silicon-germanium magneto-optic isolator |
| JP2016523393A (en) * | 2013-08-19 | 2016-08-08 | 華為技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． | Optical isolator |
| CN103777273A (en) * | 2014-02-12 | 2014-05-07 | 华中科技大学 | Waveguide intersection unit and manufacturing method thereof |
| JP2020134845A (en) * | 2019-02-25 | 2020-08-31 | 京セラ株式会社 | Isolator, light source device, optical transmitter, optical switch, optical amplifier, and data center |
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